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I found in dictionary わけ is a Noun, However, I see in the book that Noun will
go with な when using with わけ, as N な + わけがない/わけはない.

Besides わけ, is there any Japanese word that has that exception?

Why has it become like that? And there is any general rule for us to remember?
Thanks a lot.


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2019-08-07T13:55:06.373
69940
2019-08-07T17:14:47.913
34140
question
grammar
N + NO/NA/DA + わけ and generic rule?


If N is a pure noun such as 学生 or 食べ物, N **の** わけがない is the norm in formal
settings. N **な** わけがない is usually acceptable, but tends to sound colloquial.
な is sometimes used also before 理由, こと, 場合, etc. If N is a na-adjective (aka
descriptive noun) such as 簡単, simply な should be used. Nだわけがない is always
ungrammatical.

See also: [嘘なわけ in this
sentence?](https://japanese.stackexchange.com/q/58009/5010)


CC BY-SA 4.0
2019-08-07T17:14:47.913
69944
2019-08-07T17:14:47.913
5010
69940
answer